If they know that he carries an arsenal and that he's very well trained in hand to hand combat, wouldn't they also know something about his M.O.? Batman doesn't kill cops. She should know this. Also, a police officer is only authorized deadly force if their lives or the lives of others are in life threatening danger. She could also have used her taser or her mace / PAVA spray, not to mention the baton instead of her firearm. And Batman was beating him up, not stabbing him. People get into fights and cut each other up with broken beer bottles and I can tell you that they don't let officers just put handcuffs on them because the officer told them, they resist arrest too, and they are also armed. Despite this a cop still is not authorized use of deadly force, they have other ways of taking these people down that don't involve killing them. So yeah, Batman was being a dick, no argument, but she was in the wrong on a legal stand point. Considering she shot him and he still popped her in the nose and took her gun? That doesn't speak well about her OR him really...